1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // soc-topology.c -- ALSA SoC Topology 4 // 5 // Copyright (C) 2012 Texas Instruments Inc. 6 // Copyright (C) 2015 Intel Corporation. 7 // 8 // Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com> 9 // K, Mythri P <mythri.p.k@intel.com> 10 // Prusty, Subhransu S <subhransu.s.prusty@intel.com> 11 // B, Jayachandran <jayachandran.b@intel.com> 12 // Abdullah, Omair M <omair.m.abdullah@intel.com> 13 // Jin, Yao <yao.jin@intel.com> 14 // Lin, Mengdong <mengdong.lin@intel.com> 15 // 16 // Add support to read audio firmware topology alongside firmware text. The 17 // topology data can contain kcontrols, DAPM graphs, widgets, DAIs, DAI links, 18 // equalizers, firmware, coefficients etc. 19 // 20 // This file only manages the core ALSA and ASoC components, all other bespoke 21 // firmware topology data is passed to component drivers for bespoke handling. 22 23 #include <linux/kernel.h> 24 #include <linux/export.h> 25 #include <linux/list.h> 26 #include <linux/firmware.h> 27 #include <linux/slab.h> 28 #include <sound/soc.h> 29 #include <sound/soc-dapm.h> 30 #include <sound/soc-topology.h> 31 #include <sound/tlv.h> 32 33 #define SOC_TPLG_MAGIC_BIG_ENDIAN 0x436F5341 /* ASoC in reverse */ 34 35 /* 36 * We make several passes over the data (since it wont necessarily be ordered) 37 * and process objects in the following order. This guarantees the component 38 * drivers will be ready with any vendor data before the mixers and DAPM objects 39 * are loaded (that may make use of the vendor data). 40 */ 41 #define SOC_TPLG_PASS_MANIFEST 0 42 #define SOC_TPLG_PASS_VENDOR 1 43 #define SOC_TPLG_PASS_CONTROL 2 44 #define SOC_TPLG_PASS_WIDGET 3 45 #define SOC_TPLG_PASS_PCM_DAI 4 46 #define SOC_TPLG_PASS_GRAPH 5 47 #define SOC_TPLG_PASS_BE_DAI 6 48 #define SOC_TPLG_PASS_LINK 7 49 50 #define SOC_TPLG_PASS_START SOC_TPLG_PASS_MANIFEST 51 #define SOC_TPLG_PASS_END SOC_TPLG_PASS_LINK 52 53 /* topology context */ 54 struct soc_tplg { 55 const struct firmware *fw; 56 57 /* runtime FW parsing */ 58 const u8 *pos; /* read position */ 59 const u8 *hdr_pos; /* header position */ 60 unsigned int pass; /* pass number */ 61 62 /* component caller */ 63 struct device *dev; 64 struct snd_soc_component *comp; 65 u32 index; /* current block index */ 66 67 /* vendor specific kcontrol operations */ 68 const struct snd_soc_tplg_kcontrol_ops *io_ops; 69 int io_ops_count; 70 71 /* vendor specific bytes ext handlers, for TLV bytes controls */ 72 const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops; 73 int bytes_ext_ops_count; 74 75 /* optional fw loading callbacks to component drivers */ 76 const struct snd_soc_tplg_ops *ops; 77 }; 78 79 /* check we dont overflow the data for this control chunk */ 80 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size, 81 unsigned int count, size_t bytes, const char *elem_type) 82 { 83 const u8 *end = tplg->pos + elem_size * count; 84 85 if (end > tplg->fw->data + tplg->fw->size) { 86 dev_err(tplg->dev, "ASoC: %s overflow end of data\n", 87 elem_type); 88 return -EINVAL; 89 } 90 91 /* check there is enough room in chunk for control. 92 extra bytes at the end of control are for vendor data here */ 93 if (elem_size * count > bytes) { 94 dev_err(tplg->dev, 95 "ASoC: %s count %d of size %zu is bigger than chunk %zu\n", 96 elem_type, count, elem_size, bytes); 97 return -EINVAL; 98 } 99 100 return 0; 101 } 102 103 static inline bool soc_tplg_is_eof(struct soc_tplg *tplg) 104 { 105 const u8 *end = tplg->hdr_pos; 106 107 if (end >= tplg->fw->data + tplg->fw->size) 108 return true; 109 return false; 110 } 111 112 static inline unsigned long soc_tplg_get_hdr_offset(struct soc_tplg *tplg) 113 { 114 return (unsigned long)(tplg->hdr_pos - tplg->fw->data); 115 } 116 117 static inline unsigned long soc_tplg_get_offset(struct soc_tplg *tplg) 118 { 119 return (unsigned long)(tplg->pos - tplg->fw->data); 120 } 121 122 /* mapping of Kcontrol types and associated operations. */ 123 static const struct snd_soc_tplg_kcontrol_ops io_ops[] = { 124 {SND_SOC_TPLG_CTL_VOLSW, snd_soc_get_volsw, 125 snd_soc_put_volsw, snd_soc_info_volsw}, 126 {SND_SOC_TPLG_CTL_VOLSW_SX, snd_soc_get_volsw_sx, 127 snd_soc_put_volsw_sx, NULL}, 128 {SND_SOC_TPLG_CTL_ENUM, snd_soc_get_enum_double, 129 snd_soc_put_enum_double, snd_soc_info_enum_double}, 130 {SND_SOC_TPLG_CTL_ENUM_VALUE, snd_soc_get_enum_double, 131 snd_soc_put_enum_double, NULL}, 132 {SND_SOC_TPLG_CTL_BYTES, snd_soc_bytes_get, 133 snd_soc_bytes_put, snd_soc_bytes_info}, 134 {SND_SOC_TPLG_CTL_RANGE, snd_soc_get_volsw_range, 135 snd_soc_put_volsw_range, snd_soc_info_volsw_range}, 136 {SND_SOC_TPLG_CTL_VOLSW_XR_SX, snd_soc_get_xr_sx, 137 snd_soc_put_xr_sx, snd_soc_info_xr_sx}, 138 {SND_SOC_TPLG_CTL_STROBE, snd_soc_get_strobe, 139 snd_soc_put_strobe, NULL}, 140 {SND_SOC_TPLG_DAPM_CTL_VOLSW, snd_soc_dapm_get_volsw, 141 snd_soc_dapm_put_volsw, snd_soc_info_volsw}, 142 {SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE, snd_soc_dapm_get_enum_double, 143 snd_soc_dapm_put_enum_double, snd_soc_info_enum_double}, 144 {SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT, snd_soc_dapm_get_enum_double, 145 snd_soc_dapm_put_enum_double, NULL}, 146 {SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE, snd_soc_dapm_get_enum_double, 147 snd_soc_dapm_put_enum_double, NULL}, 148 {SND_SOC_TPLG_DAPM_CTL_PIN, snd_soc_dapm_get_pin_switch, 149 snd_soc_dapm_put_pin_switch, snd_soc_dapm_info_pin_switch}, 150 }; 151 152 struct soc_tplg_map { 153 int uid; 154 int kid; 155 }; 156 157 /* mapping of widget types from UAPI IDs to kernel IDs */ 158 static const struct soc_tplg_map dapm_map[] = { 159 {SND_SOC_TPLG_DAPM_INPUT, snd_soc_dapm_input}, 160 {SND_SOC_TPLG_DAPM_OUTPUT, snd_soc_dapm_output}, 161 {SND_SOC_TPLG_DAPM_MUX, snd_soc_dapm_mux}, 162 {SND_SOC_TPLG_DAPM_MIXER, snd_soc_dapm_mixer}, 163 {SND_SOC_TPLG_DAPM_PGA, snd_soc_dapm_pga}, 164 {SND_SOC_TPLG_DAPM_OUT_DRV, snd_soc_dapm_out_drv}, 165 {SND_SOC_TPLG_DAPM_ADC, snd_soc_dapm_adc}, 166 {SND_SOC_TPLG_DAPM_DAC, snd_soc_dapm_dac}, 167 {SND_SOC_TPLG_DAPM_SWITCH, snd_soc_dapm_switch}, 168 {SND_SOC_TPLG_DAPM_PRE, snd_soc_dapm_pre}, 169 {SND_SOC_TPLG_DAPM_POST, snd_soc_dapm_post}, 170 {SND_SOC_TPLG_DAPM_AIF_IN, snd_soc_dapm_aif_in}, 171 {SND_SOC_TPLG_DAPM_AIF_OUT, snd_soc_dapm_aif_out}, 172 {SND_SOC_TPLG_DAPM_DAI_IN, snd_soc_dapm_dai_in}, 173 {SND_SOC_TPLG_DAPM_DAI_OUT, snd_soc_dapm_dai_out}, 174 {SND_SOC_TPLG_DAPM_DAI_LINK, snd_soc_dapm_dai_link}, 175 {SND_SOC_TPLG_DAPM_BUFFER, snd_soc_dapm_buffer}, 176 {SND_SOC_TPLG_DAPM_SCHEDULER, snd_soc_dapm_scheduler}, 177 {SND_SOC_TPLG_DAPM_EFFECT, snd_soc_dapm_effect}, 178 {SND_SOC_TPLG_DAPM_SIGGEN, snd_soc_dapm_siggen}, 179 {SND_SOC_TPLG_DAPM_SRC, snd_soc_dapm_src}, 180 {SND_SOC_TPLG_DAPM_ASRC, snd_soc_dapm_asrc}, 181 {SND_SOC_TPLG_DAPM_ENCODER, snd_soc_dapm_encoder}, 182 {SND_SOC_TPLG_DAPM_DECODER, snd_soc_dapm_decoder}, 183 }; 184 185 static int tplg_chan_get_reg(struct soc_tplg *tplg, 186 struct snd_soc_tplg_channel *chan, int map) 187 { 188 int i; 189 190 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 191 if (le32_to_cpu(chan[i].id) == map) 192 return le32_to_cpu(chan[i].reg); 193 } 194 195 return -EINVAL; 196 } 197 198 static int tplg_chan_get_shift(struct soc_tplg *tplg, 199 struct snd_soc_tplg_channel *chan, int map) 200 { 201 int i; 202 203 for (i = 0; i < SND_SOC_TPLG_MAX_CHAN; i++) { 204 if (le32_to_cpu(chan[i].id) == map) 205 return le32_to_cpu(chan[i].shift); 206 } 207 208 return -EINVAL; 209 } 210 211 static int get_widget_id(int tplg_type) 212 { 213 int i; 214 215 for (i = 0; i < ARRAY_SIZE(dapm_map); i++) { 216 if (tplg_type == dapm_map[i].uid) 217 return dapm_map[i].kid; 218 } 219 220 return -EINVAL; 221 } 222 223 static inline void soc_bind_err(struct soc_tplg *tplg, 224 struct snd_soc_tplg_ctl_hdr *hdr, int index) 225 { 226 dev_err(tplg->dev, 227 "ASoC: invalid control type (g,p,i) %d:%d:%d index %d at 0x%lx\n", 228 hdr->ops.get, hdr->ops.put, hdr->ops.info, index, 229 soc_tplg_get_offset(tplg)); 230 } 231 232 static inline void soc_control_err(struct soc_tplg *tplg, 233 struct snd_soc_tplg_ctl_hdr *hdr, const char *name) 234 { 235 dev_err(tplg->dev, 236 "ASoC: no complete control IO handler for %s type (g,p,i) %d:%d:%d at 0x%lx\n", 237 name, hdr->ops.get, hdr->ops.put, hdr->ops.info, 238 soc_tplg_get_offset(tplg)); 239 } 240 241 /* pass vendor data to component driver for processing */ 242 static int soc_tplg_vendor_load(struct soc_tplg *tplg, 243 struct snd_soc_tplg_hdr *hdr) 244 { 245 int ret = 0; 246 247 if (tplg->ops && tplg->ops->vendor_load) 248 ret = tplg->ops->vendor_load(tplg->comp, tplg->index, hdr); 249 else { 250 dev_err(tplg->dev, "ASoC: no vendor load callback for ID %d\n", 251 hdr->vendor_type); 252 return -EINVAL; 253 } 254 255 if (ret < 0) 256 dev_err(tplg->dev, 257 "ASoC: vendor load failed at hdr offset %ld/0x%lx for type %d:%d\n", 258 soc_tplg_get_hdr_offset(tplg), 259 soc_tplg_get_hdr_offset(tplg), 260 hdr->type, hdr->vendor_type); 261 return ret; 262 } 263 264 /* optionally pass new dynamic widget to component driver. This is mainly for 265 * external widgets where we can assign private data/ops */ 266 static int soc_tplg_widget_load(struct soc_tplg *tplg, 267 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 268 { 269 if (tplg->ops && tplg->ops->widget_load) 270 return tplg->ops->widget_load(tplg->comp, tplg->index, w, 271 tplg_w); 272 273 return 0; 274 } 275 276 /* optionally pass new dynamic widget to component driver. This is mainly for 277 * external widgets where we can assign private data/ops */ 278 static int soc_tplg_widget_ready(struct soc_tplg *tplg, 279 struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w) 280 { 281 if (tplg->ops && tplg->ops->widget_ready) 282 return tplg->ops->widget_ready(tplg->comp, tplg->index, w, 283 tplg_w); 284 285 return 0; 286 } 287 288 /* pass DAI configurations to component driver for extra initialization */ 289 static int soc_tplg_dai_load(struct soc_tplg *tplg, 290 struct snd_soc_dai_driver *dai_drv, 291 struct snd_soc_tplg_pcm *pcm, struct snd_soc_dai *dai) 292 { 293 if (tplg->ops && tplg->ops->dai_load) 294 return tplg->ops->dai_load(tplg->comp, tplg->index, dai_drv, 295 pcm, dai); 296 297 return 0; 298 } 299 300 /* pass link configurations to component driver for extra initialization */ 301 static int soc_tplg_dai_link_load(struct soc_tplg *tplg, 302 struct snd_soc_dai_link *link, struct snd_soc_tplg_link_config *cfg) 303 { 304 if (tplg->ops && tplg->ops->link_load) 305 return tplg->ops->link_load(tplg->comp, tplg->index, link, cfg); 306 307 return 0; 308 } 309 310 /* tell the component driver that all firmware has been loaded in this request */ 311 static int soc_tplg_complete(struct soc_tplg *tplg) 312 { 313 if (tplg->ops && tplg->ops->complete) 314 return tplg->ops->complete(tplg->comp); 315 316 return 0; 317 } 318 319 /* add a dynamic kcontrol */ 320 static int soc_tplg_add_dcontrol(struct snd_card *card, struct device *dev, 321 const struct snd_kcontrol_new *control_new, const char *prefix, 322 void *data, struct snd_kcontrol **kcontrol) 323 { 324 int err; 325 326 *kcontrol = snd_soc_cnew(control_new, data, control_new->name, prefix); 327 if (*kcontrol == NULL) { 328 dev_err(dev, "ASoC: Failed to create new kcontrol %s\n", 329 control_new->name); 330 return -ENOMEM; 331 } 332 333 err = snd_ctl_add(card, *kcontrol); 334 if (err < 0) { 335 dev_err(dev, "ASoC: Failed to add %s: %d\n", 336 control_new->name, err); 337 return err; 338 } 339 340 return 0; 341 } 342 343 /* add a dynamic kcontrol for component driver */ 344 static int soc_tplg_add_kcontrol(struct soc_tplg *tplg, 345 struct snd_kcontrol_new *k, struct snd_kcontrol **kcontrol) 346 { 347 struct snd_soc_component *comp = tplg->comp; 348 349 return soc_tplg_add_dcontrol(comp->card->snd_card, 350 tplg->dev, k, comp->name_prefix, comp, kcontrol); 351 } 352 353 /* remove kcontrol */ 354 static void soc_tplg_remove_kcontrol(struct snd_soc_component *comp, struct snd_soc_dobj *dobj, 355 int pass) 356 { 357 struct snd_card *card = comp->card->snd_card; 358 359 if (pass != SOC_TPLG_PASS_CONTROL) 360 return; 361 362 if (dobj->unload) 363 dobj->unload(comp, dobj); 364 365 snd_ctl_remove(card, dobj->control.kcontrol); 366 list_del(&dobj->list); 367 } 368 369 /* remove a route */ 370 static void soc_tplg_remove_route(struct snd_soc_component *comp, 371 struct snd_soc_dobj *dobj, int pass) 372 { 373 if (pass != SOC_TPLG_PASS_GRAPH) 374 return; 375 376 if (dobj->unload) 377 dobj->unload(comp, dobj); 378 379 list_del(&dobj->list); 380 } 381 382 /* remove a widget and it's kcontrols - routes must be removed first */ 383 static void soc_tplg_remove_widget(struct snd_soc_component *comp, 384 struct snd_soc_dobj *dobj, int pass) 385 { 386 struct snd_card *card = comp->card->snd_card; 387 struct snd_soc_dapm_widget *w = 388 container_of(dobj, struct snd_soc_dapm_widget, dobj); 389 int i; 390 391 if (pass != SOC_TPLG_PASS_WIDGET) 392 return; 393 394 if (dobj->unload) 395 dobj->unload(comp, dobj); 396 397 if (w->kcontrols) 398 for (i = 0; i < w->num_kcontrols; i++) 399 snd_ctl_remove(card, w->kcontrols[i]); 400 401 list_del(&dobj->list); 402 403 /* widget w is freed by soc-dapm.c */ 404 } 405 406 /* remove DAI configurations */ 407 static void soc_tplg_remove_dai(struct snd_soc_component *comp, 408 struct snd_soc_dobj *dobj, int pass) 409 { 410 struct snd_soc_dai_driver *dai_drv = 411 container_of(dobj, struct snd_soc_dai_driver, dobj); 412 struct snd_soc_dai *dai, *_dai; 413 414 if (pass != SOC_TPLG_PASS_PCM_DAI) 415 return; 416 417 if (dobj->unload) 418 dobj->unload(comp, dobj); 419 420 for_each_component_dais_safe(comp, dai, _dai) 421 if (dai->driver == dai_drv) 422 snd_soc_unregister_dai(dai); 423 424 list_del(&dobj->list); 425 } 426 427 /* remove link configurations */ 428 static void soc_tplg_remove_link(struct snd_soc_component *comp, 429 struct snd_soc_dobj *dobj, int pass) 430 { 431 struct snd_soc_dai_link *link = 432 container_of(dobj, struct snd_soc_dai_link, dobj); 433 434 if (pass != SOC_TPLG_PASS_PCM_DAI) 435 return; 436 437 if (dobj->unload) 438 dobj->unload(comp, dobj); 439 440 list_del(&dobj->list); 441 snd_soc_remove_pcm_runtime(comp->card, 442 snd_soc_get_pcm_runtime(comp->card, link)); 443 } 444 445 /* unload dai link */ 446 static void remove_backend_link(struct snd_soc_component *comp, 447 struct snd_soc_dobj *dobj, int pass) 448 { 449 if (pass != SOC_TPLG_PASS_LINK) 450 return; 451 452 if (dobj->unload) 453 dobj->unload(comp, dobj); 454 455 /* 456 * We don't free the link here as what soc_tplg_remove_link() do since BE 457 * links are not allocated by topology. 458 * We however need to reset the dobj type to its initial values 459 */ 460 dobj->type = SND_SOC_DOBJ_NONE; 461 list_del(&dobj->list); 462 } 463 464 /* bind a kcontrol to it's IO handlers */ 465 static int soc_tplg_kcontrol_bind_io(struct snd_soc_tplg_ctl_hdr *hdr, 466 struct snd_kcontrol_new *k, 467 const struct soc_tplg *tplg) 468 { 469 const struct snd_soc_tplg_kcontrol_ops *ops; 470 const struct snd_soc_tplg_bytes_ext_ops *ext_ops; 471 int num_ops, i; 472 473 if (le32_to_cpu(hdr->ops.info) == SND_SOC_TPLG_CTL_BYTES 474 && k->iface & SNDRV_CTL_ELEM_IFACE_MIXER 475 && (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ 476 || k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) 477 && k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) { 478 struct soc_bytes_ext *sbe; 479 struct snd_soc_tplg_bytes_control *be; 480 481 sbe = (struct soc_bytes_ext *)k->private_value; 482 be = container_of(hdr, struct snd_soc_tplg_bytes_control, hdr); 483 484 /* TLV bytes controls need standard kcontrol info handler, 485 * TLV callback and extended put/get handlers. 486 */ 487 k->info = snd_soc_bytes_info_ext; 488 k->tlv.c = snd_soc_bytes_tlv_callback; 489 490 /* 491 * When a topology-based implementation abuses the 492 * control interface and uses bytes_ext controls of 493 * more than 512 bytes, we need to disable the size 494 * checks, otherwise accesses to such controls will 495 * return an -EINVAL error and prevent the card from 496 * being configured. 497 */ 498 if (sbe->max > 512) 499 k->access |= SNDRV_CTL_ELEM_ACCESS_SKIP_CHECK; 500 501 ext_ops = tplg->bytes_ext_ops; 502 num_ops = tplg->bytes_ext_ops_count; 503 for (i = 0; i < num_ops; i++) { 504 if (!sbe->put && 505 ext_ops[i].id == le32_to_cpu(be->ext_ops.put)) 506 sbe->put = ext_ops[i].put; 507 if (!sbe->get && 508 ext_ops[i].id == le32_to_cpu(be->ext_ops.get)) 509 sbe->get = ext_ops[i].get; 510 } 511 512 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_READ) && !sbe->get) 513 return -EINVAL; 514 if ((k->access & SNDRV_CTL_ELEM_ACCESS_TLV_WRITE) && !sbe->put) 515 return -EINVAL; 516 return 0; 517 } 518 519 /* try and map vendor specific kcontrol handlers first */ 520 ops = tplg->io_ops; 521 num_ops = tplg->io_ops_count; 522 for (i = 0; i < num_ops; i++) { 523 524 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 525 k->put = ops[i].put; 526 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 527 k->get = ops[i].get; 528 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 529 k->info = ops[i].info; 530 } 531 532 /* vendor specific handlers found ? */ 533 if (k->put && k->get && k->info) 534 return 0; 535 536 /* none found so try standard kcontrol handlers */ 537 ops = io_ops; 538 num_ops = ARRAY_SIZE(io_ops); 539 for (i = 0; i < num_ops; i++) { 540 541 if (k->put == NULL && ops[i].id == le32_to_cpu(hdr->ops.put)) 542 k->put = ops[i].put; 543 if (k->get == NULL && ops[i].id == le32_to_cpu(hdr->ops.get)) 544 k->get = ops[i].get; 545 if (k->info == NULL && ops[i].id == le32_to_cpu(hdr->ops.info)) 546 k->info = ops[i].info; 547 } 548 549 /* standard handlers found ? */ 550 if (k->put && k->get && k->info) 551 return 0; 552 553 /* nothing to bind */ 554 return -EINVAL; 555 } 556 557 /* bind a widgets to it's evnt handlers */ 558 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w, 559 const struct snd_soc_tplg_widget_events *events, 560 int num_events, u16 event_type) 561 { 562 int i; 563 564 w->event = NULL; 565 566 for (i = 0; i < num_events; i++) { 567 if (event_type == events[i].type) { 568 569 /* found - so assign event */ 570 w->event = events[i].event_handler; 571 return 0; 572 } 573 } 574 575 /* not found */ 576 return -EINVAL; 577 } 578 EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_bind_event); 579 580 /* optionally pass new dynamic kcontrol to component driver. */ 581 static int soc_tplg_control_load(struct soc_tplg *tplg, 582 struct snd_kcontrol_new *k, struct snd_soc_tplg_ctl_hdr *hdr) 583 { 584 int ret = 0; 585 586 if (tplg->ops && tplg->ops->control_load) 587 ret = tplg->ops->control_load(tplg->comp, tplg->index, k, hdr); 588 589 if (ret) 590 dev_err(tplg->dev, "ASoC: failed to init %s\n", hdr->name); 591 592 return ret; 593 } 594 595 596 static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg, 597 struct snd_kcontrol_new *kc, struct snd_soc_tplg_tlv_dbscale *scale) 598 { 599 unsigned int item_len = 2 * sizeof(unsigned int); 600 unsigned int *p; 601 602 p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL); 603 if (!p) 604 return -ENOMEM; 605 606 p[0] = SNDRV_CTL_TLVT_DB_SCALE; 607 p[1] = item_len; 608 p[2] = le32_to_cpu(scale->min); 609 p[3] = (le32_to_cpu(scale->step) & TLV_DB_SCALE_MASK) 610 | (le32_to_cpu(scale->mute) ? TLV_DB_SCALE_MUTE : 0); 611 612 kc->tlv.p = (void *)p; 613 return 0; 614 } 615 616 static int soc_tplg_create_tlv(struct soc_tplg *tplg, 617 struct snd_kcontrol_new *kc, struct snd_soc_tplg_ctl_hdr *tc) 618 { 619 struct snd_soc_tplg_ctl_tlv *tplg_tlv; 620 u32 access = le32_to_cpu(tc->access); 621 622 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE)) 623 return 0; 624 625 if (!(access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK)) { 626 tplg_tlv = &tc->tlv; 627 switch (le32_to_cpu(tplg_tlv->type)) { 628 case SNDRV_CTL_TLVT_DB_SCALE: 629 return soc_tplg_create_tlv_db_scale(tplg, kc, 630 &tplg_tlv->scale); 631 632 /* TODO: add support for other TLV types */ 633 default: 634 dev_dbg(tplg->dev, "Unsupported TLV type %d\n", 635 tplg_tlv->type); 636 return -EINVAL; 637 } 638 } 639 640 return 0; 641 } 642 643 static int soc_tplg_control_dmixer_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 644 { 645 struct snd_soc_tplg_mixer_control *mc; 646 struct soc_mixer_control *sm; 647 int err; 648 649 mc = (struct snd_soc_tplg_mixer_control *)tplg->pos; 650 651 /* validate kcontrol */ 652 if (strnlen(mc->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 653 return -EINVAL; 654 655 sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL); 656 if (!sm) 657 return -ENOMEM; 658 659 tplg->pos += sizeof(struct snd_soc_tplg_mixer_control) + le32_to_cpu(mc->priv.size); 660 661 dev_dbg(tplg->dev, "ASoC: adding mixer kcontrol %s with access 0x%x\n", 662 mc->hdr.name, mc->hdr.access); 663 664 kc->name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL); 665 if (!kc->name) 666 return -ENOMEM; 667 kc->private_value = (long)sm; 668 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 669 kc->access = le32_to_cpu(mc->hdr.access); 670 671 /* we only support FL/FR channel mapping atm */ 672 sm->reg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FL); 673 sm->rreg = tplg_chan_get_reg(tplg, mc->channel, SNDRV_CHMAP_FR); 674 sm->shift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FL); 675 sm->rshift = tplg_chan_get_shift(tplg, mc->channel, SNDRV_CHMAP_FR); 676 677 sm->max = le32_to_cpu(mc->max); 678 sm->min = le32_to_cpu(mc->min); 679 sm->invert = le32_to_cpu(mc->invert); 680 sm->platform_max = le32_to_cpu(mc->platform_max); 681 682 /* map io handlers */ 683 err = soc_tplg_kcontrol_bind_io(&mc->hdr, kc, tplg); 684 if (err) { 685 soc_control_err(tplg, &mc->hdr, mc->hdr.name); 686 return err; 687 } 688 689 /* create any TLV data */ 690 err = soc_tplg_create_tlv(tplg, kc, &mc->hdr); 691 if (err < 0) { 692 dev_err(tplg->dev, "ASoC: failed to create TLV %s\n", mc->hdr.name); 693 return err; 694 } 695 696 /* pass control to driver for optional further init */ 697 return soc_tplg_control_load(tplg, kc, &mc->hdr); 698 } 699 700 static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se, 701 struct snd_soc_tplg_enum_control *ec) 702 { 703 int i, ret; 704 705 if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts)) 706 return -EINVAL; 707 708 se->dobj.control.dtexts = 709 devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL); 710 if (se->dobj.control.dtexts == NULL) 711 return -ENOMEM; 712 713 for (i = 0; i < le32_to_cpu(ec->items); i++) { 714 715 if (strnlen(ec->texts[i], SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 716 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) { 717 ret = -EINVAL; 718 goto err; 719 } 720 721 se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL); 722 if (!se->dobj.control.dtexts[i]) { 723 ret = -ENOMEM; 724 goto err; 725 } 726 } 727 728 se->items = le32_to_cpu(ec->items); 729 se->texts = (const char * const *)se->dobj.control.dtexts; 730 return 0; 731 732 err: 733 return ret; 734 } 735 736 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se, 737 struct snd_soc_tplg_enum_control *ec) 738 { 739 int i; 740 741 /* 742 * Following "if" checks if we have at most SND_SOC_TPLG_NUM_TEXTS 743 * values instead of using ARRAY_SIZE(ec->values) due to the fact that 744 * it is oversized for its purpose. Additionally it is done so because 745 * it is defined in UAPI header where it can't be easily changed. 746 */ 747 if (le32_to_cpu(ec->items) > SND_SOC_TPLG_NUM_TEXTS) 748 return -EINVAL; 749 750 se->dobj.control.dvalues = devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), 751 sizeof(*se->dobj.control.dvalues), 752 GFP_KERNEL); 753 if (!se->dobj.control.dvalues) 754 return -ENOMEM; 755 756 /* convert from little-endian */ 757 for (i = 0; i < le32_to_cpu(ec->items); i++) { 758 se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]); 759 } 760 761 se->items = le32_to_cpu(ec->items); 762 se->values = (const unsigned int *)se->dobj.control.dvalues; 763 return 0; 764 } 765 766 static int soc_tplg_control_denum_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 767 { 768 struct snd_soc_tplg_enum_control *ec; 769 struct soc_enum *se; 770 int err; 771 772 ec = (struct snd_soc_tplg_enum_control *)tplg->pos; 773 774 /* validate kcontrol */ 775 if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 776 return -EINVAL; 777 778 se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL); 779 if (!se) 780 return -ENOMEM; 781 782 tplg->pos += (sizeof(struct snd_soc_tplg_enum_control) + le32_to_cpu(ec->priv.size)); 783 784 dev_dbg(tplg->dev, "ASoC: adding enum kcontrol %s size %d\n", ec->hdr.name, ec->items); 785 786 kc->name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL); 787 if (!kc->name) 788 return -ENOMEM; 789 kc->private_value = (long)se; 790 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 791 kc->access = le32_to_cpu(ec->hdr.access); 792 793 /* we only support FL/FR channel mapping atm */ 794 se->reg = tplg_chan_get_reg(tplg, ec->channel, SNDRV_CHMAP_FL); 795 se->shift_l = tplg_chan_get_shift(tplg, ec->channel, SNDRV_CHMAP_FL); 796 se->shift_r = tplg_chan_get_shift(tplg, ec->channel, SNDRV_CHMAP_FR); 797 798 se->mask = le32_to_cpu(ec->mask); 799 800 switch (le32_to_cpu(ec->hdr.ops.info)) { 801 case SND_SOC_TPLG_CTL_ENUM_VALUE: 802 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 803 err = soc_tplg_denum_create_values(tplg, se, ec); 804 if (err < 0) { 805 dev_err(tplg->dev, "ASoC: could not create values for %s\n", ec->hdr.name); 806 return err; 807 } 808 fallthrough; 809 case SND_SOC_TPLG_CTL_ENUM: 810 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 811 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 812 err = soc_tplg_denum_create_texts(tplg, se, ec); 813 if (err < 0) { 814 dev_err(tplg->dev, "ASoC: could not create texts for %s\n", ec->hdr.name); 815 return err; 816 } 817 break; 818 default: 819 dev_err(tplg->dev, "ASoC: invalid enum control type %d for %s\n", 820 ec->hdr.ops.info, ec->hdr.name); 821 return -EINVAL; 822 } 823 824 /* map io handlers */ 825 err = soc_tplg_kcontrol_bind_io(&ec->hdr, kc, tplg); 826 if (err) { 827 soc_control_err(tplg, &ec->hdr, ec->hdr.name); 828 return err; 829 } 830 831 /* pass control to driver for optional further init */ 832 return soc_tplg_control_load(tplg, kc, &ec->hdr); 833 } 834 835 static int soc_tplg_control_dbytes_create(struct soc_tplg *tplg, struct snd_kcontrol_new *kc) 836 { 837 struct snd_soc_tplg_bytes_control *be; 838 struct soc_bytes_ext *sbe; 839 int err; 840 841 be = (struct snd_soc_tplg_bytes_control *)tplg->pos; 842 843 /* validate kcontrol */ 844 if (strnlen(be->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 845 return -EINVAL; 846 847 sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL); 848 if (!sbe) 849 return -ENOMEM; 850 851 tplg->pos += (sizeof(struct snd_soc_tplg_bytes_control) + le32_to_cpu(be->priv.size)); 852 853 dev_dbg(tplg->dev, "ASoC: adding bytes kcontrol %s with access 0x%x\n", 854 be->hdr.name, be->hdr.access); 855 856 kc->name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL); 857 if (!kc->name) 858 return -ENOMEM; 859 kc->private_value = (long)sbe; 860 kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER; 861 kc->access = le32_to_cpu(be->hdr.access); 862 863 sbe->max = le32_to_cpu(be->max); 864 865 /* map standard io handlers and check for external handlers */ 866 err = soc_tplg_kcontrol_bind_io(&be->hdr, kc, tplg); 867 if (err) { 868 soc_control_err(tplg, &be->hdr, be->hdr.name); 869 return err; 870 } 871 872 /* pass control to driver for optional further init */ 873 return soc_tplg_control_load(tplg, kc, &be->hdr); 874 } 875 876 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, size_t size) 877 { 878 struct snd_kcontrol_new kc = {0}; 879 struct soc_bytes_ext *sbe; 880 int ret; 881 882 if (soc_tplg_check_elem_count(tplg, 883 sizeof(struct snd_soc_tplg_bytes_control), 884 1, size, "mixer bytes")) 885 return -EINVAL; 886 887 ret = soc_tplg_control_dbytes_create(tplg, &kc); 888 if (ret) 889 return ret; 890 891 /* register dynamic object */ 892 sbe = (struct soc_bytes_ext *)kc.private_value; 893 894 INIT_LIST_HEAD(&sbe->dobj.list); 895 sbe->dobj.type = SND_SOC_DOBJ_BYTES; 896 sbe->dobj.index = tplg->index; 897 if (tplg->ops) 898 sbe->dobj.unload = tplg->ops->control_unload; 899 900 /* create control directly */ 901 ret = soc_tplg_add_kcontrol(tplg, &kc, &sbe->dobj.control.kcontrol); 902 if (ret < 0) 903 return ret; 904 905 list_add(&sbe->dobj.list, &tplg->comp->dobj_list); 906 907 return ret; 908 } 909 910 static int soc_tplg_dmixer_create(struct soc_tplg *tplg, size_t size) 911 { 912 struct snd_kcontrol_new kc = {0}; 913 struct soc_mixer_control *sm; 914 int ret; 915 916 if (soc_tplg_check_elem_count(tplg, 917 sizeof(struct snd_soc_tplg_mixer_control), 918 1, size, "mixers")) 919 return -EINVAL; 920 921 ret = soc_tplg_control_dmixer_create(tplg, &kc); 922 if (ret) 923 return ret; 924 925 /* register dynamic object */ 926 sm = (struct soc_mixer_control *)kc.private_value; 927 928 INIT_LIST_HEAD(&sm->dobj.list); 929 sm->dobj.type = SND_SOC_DOBJ_MIXER; 930 sm->dobj.index = tplg->index; 931 if (tplg->ops) 932 sm->dobj.unload = tplg->ops->control_unload; 933 934 /* create control directly */ 935 ret = soc_tplg_add_kcontrol(tplg, &kc, &sm->dobj.control.kcontrol); 936 if (ret < 0) 937 return ret; 938 939 list_add(&sm->dobj.list, &tplg->comp->dobj_list); 940 941 return ret; 942 } 943 944 static int soc_tplg_denum_create(struct soc_tplg *tplg, size_t size) 945 { 946 struct snd_kcontrol_new kc = {0}; 947 struct soc_enum *se; 948 int ret; 949 950 if (soc_tplg_check_elem_count(tplg, 951 sizeof(struct snd_soc_tplg_enum_control), 952 1, size, "enums")) 953 return -EINVAL; 954 955 ret = soc_tplg_control_denum_create(tplg, &kc); 956 if (ret) 957 return ret; 958 959 /* register dynamic object */ 960 se = (struct soc_enum *)kc.private_value; 961 962 INIT_LIST_HEAD(&se->dobj.list); 963 se->dobj.type = SND_SOC_DOBJ_ENUM; 964 se->dobj.index = tplg->index; 965 if (tplg->ops) 966 se->dobj.unload = tplg->ops->control_unload; 967 968 /* create control directly */ 969 ret = soc_tplg_add_kcontrol(tplg, &kc, &se->dobj.control.kcontrol); 970 if (ret < 0) 971 return ret; 972 973 list_add(&se->dobj.list, &tplg->comp->dobj_list); 974 975 return ret; 976 } 977 978 static int soc_tplg_kcontrol_elems_load(struct soc_tplg *tplg, 979 struct snd_soc_tplg_hdr *hdr) 980 { 981 int ret; 982 int i; 983 984 dev_dbg(tplg->dev, "ASoC: adding %d kcontrols at 0x%lx\n", hdr->count, 985 soc_tplg_get_offset(tplg)); 986 987 for (i = 0; i < le32_to_cpu(hdr->count); i++) { 988 struct snd_soc_tplg_ctl_hdr *control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 989 990 if (le32_to_cpu(control_hdr->size) != sizeof(*control_hdr)) { 991 dev_err(tplg->dev, "ASoC: invalid control size\n"); 992 return -EINVAL; 993 } 994 995 switch (le32_to_cpu(control_hdr->ops.info)) { 996 case SND_SOC_TPLG_CTL_VOLSW: 997 case SND_SOC_TPLG_CTL_STROBE: 998 case SND_SOC_TPLG_CTL_VOLSW_SX: 999 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1000 case SND_SOC_TPLG_CTL_RANGE: 1001 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1002 case SND_SOC_TPLG_DAPM_CTL_PIN: 1003 ret = soc_tplg_dmixer_create(tplg, le32_to_cpu(hdr->payload_size)); 1004 break; 1005 case SND_SOC_TPLG_CTL_ENUM: 1006 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1007 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1008 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1009 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1010 ret = soc_tplg_denum_create(tplg, le32_to_cpu(hdr->payload_size)); 1011 break; 1012 case SND_SOC_TPLG_CTL_BYTES: 1013 ret = soc_tplg_dbytes_create(tplg, le32_to_cpu(hdr->payload_size)); 1014 break; 1015 default: 1016 soc_bind_err(tplg, control_hdr, i); 1017 return -EINVAL; 1018 } 1019 if (ret < 0) { 1020 dev_err(tplg->dev, "ASoC: invalid control\n"); 1021 return ret; 1022 } 1023 1024 } 1025 1026 return 0; 1027 } 1028 1029 /* optionally pass new dynamic kcontrol to component driver. */ 1030 static int soc_tplg_add_route(struct soc_tplg *tplg, 1031 struct snd_soc_dapm_route *route) 1032 { 1033 if (tplg->ops && tplg->ops->dapm_route_load) 1034 return tplg->ops->dapm_route_load(tplg->comp, tplg->index, 1035 route); 1036 1037 return 0; 1038 } 1039 1040 static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg, 1041 struct snd_soc_tplg_hdr *hdr) 1042 { 1043 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1044 const size_t maxlen = SNDRV_CTL_ELEM_ID_NAME_MAXLEN; 1045 struct snd_soc_tplg_dapm_graph_elem *elem; 1046 struct snd_soc_dapm_route *route; 1047 int count, i; 1048 int ret = 0; 1049 1050 count = le32_to_cpu(hdr->count); 1051 1052 if (soc_tplg_check_elem_count(tplg, 1053 sizeof(struct snd_soc_tplg_dapm_graph_elem), 1054 count, le32_to_cpu(hdr->payload_size), "graph")) 1055 return -EINVAL; 1056 1057 dev_dbg(tplg->dev, "ASoC: adding %d DAPM routes for index %d\n", count, 1058 hdr->index); 1059 1060 for (i = 0; i < count; i++) { 1061 route = devm_kzalloc(tplg->dev, sizeof(*route), GFP_KERNEL); 1062 if (!route) 1063 return -ENOMEM; 1064 elem = (struct snd_soc_tplg_dapm_graph_elem *)tplg->pos; 1065 tplg->pos += sizeof(struct snd_soc_tplg_dapm_graph_elem); 1066 1067 /* validate routes */ 1068 if ((strnlen(elem->source, maxlen) == maxlen) || 1069 (strnlen(elem->sink, maxlen) == maxlen) || 1070 (strnlen(elem->control, maxlen) == maxlen)) { 1071 ret = -EINVAL; 1072 break; 1073 } 1074 1075 route->source = devm_kstrdup(tplg->dev, elem->source, GFP_KERNEL); 1076 route->sink = devm_kstrdup(tplg->dev, elem->sink, GFP_KERNEL); 1077 if (!route->source || !route->sink) { 1078 ret = -ENOMEM; 1079 break; 1080 } 1081 1082 if (strnlen(elem->control, maxlen) != 0) { 1083 route->control = devm_kstrdup(tplg->dev, elem->control, GFP_KERNEL); 1084 if (!route->control) { 1085 ret = -ENOMEM; 1086 break; 1087 } 1088 } 1089 1090 /* add route dobj to dobj_list */ 1091 route->dobj.type = SND_SOC_DOBJ_GRAPH; 1092 if (tplg->ops) 1093 route->dobj.unload = tplg->ops->dapm_route_unload; 1094 route->dobj.index = tplg->index; 1095 list_add(&route->dobj.list, &tplg->comp->dobj_list); 1096 1097 ret = soc_tplg_add_route(tplg, route); 1098 if (ret < 0) { 1099 dev_err(tplg->dev, "ASoC: topology: add_route failed: %d\n", ret); 1100 break; 1101 } 1102 1103 ret = snd_soc_dapm_add_routes(dapm, route, 1); 1104 if (ret) { 1105 if (!dapm->card->disable_route_checks) { 1106 dev_err(tplg->dev, "ASoC: dapm_add_routes failed: %d\n", ret); 1107 break; 1108 } 1109 dev_info(tplg->dev, 1110 "ASoC: disable_route_checks set, ignoring dapm_add_routes errors\n"); 1111 } 1112 } 1113 1114 return ret; 1115 } 1116 1117 static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, 1118 struct snd_soc_tplg_dapm_widget *w) 1119 { 1120 struct snd_soc_dapm_context *dapm = &tplg->comp->dapm; 1121 struct snd_soc_dapm_widget template, *widget; 1122 struct snd_soc_tplg_ctl_hdr *control_hdr; 1123 struct snd_soc_card *card = tplg->comp->card; 1124 unsigned int *kcontrol_type = NULL; 1125 struct snd_kcontrol_new *kc; 1126 int mixer_count = 0; 1127 int bytes_count = 0; 1128 int enum_count = 0; 1129 int ret = 0; 1130 int i; 1131 1132 if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1133 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1134 return -EINVAL; 1135 if (strnlen(w->sname, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 1136 SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1137 return -EINVAL; 1138 1139 dev_dbg(tplg->dev, "ASoC: creating DAPM widget %s id %d\n", 1140 w->name, w->id); 1141 1142 memset(&template, 0, sizeof(template)); 1143 1144 /* map user to kernel widget ID */ 1145 template.id = get_widget_id(le32_to_cpu(w->id)); 1146 if ((int)template.id < 0) 1147 return template.id; 1148 1149 /* strings are allocated here, but used and freed by the widget */ 1150 template.name = kstrdup(w->name, GFP_KERNEL); 1151 if (!template.name) 1152 return -ENOMEM; 1153 template.sname = kstrdup(w->sname, GFP_KERNEL); 1154 if (!template.sname) { 1155 ret = -ENOMEM; 1156 goto err; 1157 } 1158 template.reg = le32_to_cpu(w->reg); 1159 template.shift = le32_to_cpu(w->shift); 1160 template.mask = le32_to_cpu(w->mask); 1161 template.subseq = le32_to_cpu(w->subseq); 1162 template.on_val = w->invert ? 0 : 1; 1163 template.off_val = w->invert ? 1 : 0; 1164 template.ignore_suspend = le32_to_cpu(w->ignore_suspend); 1165 template.event_flags = le16_to_cpu(w->event_flags); 1166 template.dobj.index = tplg->index; 1167 1168 tplg->pos += 1169 (sizeof(struct snd_soc_tplg_dapm_widget) + 1170 le32_to_cpu(w->priv.size)); 1171 1172 if (w->num_kcontrols == 0) { 1173 template.num_kcontrols = 0; 1174 goto widget; 1175 } 1176 1177 template.num_kcontrols = le32_to_cpu(w->num_kcontrols); 1178 kc = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(*kc), GFP_KERNEL); 1179 if (!kc) { 1180 ret = -ENOMEM; 1181 goto hdr_err; 1182 } 1183 1184 kcontrol_type = devm_kcalloc(tplg->dev, le32_to_cpu(w->num_kcontrols), sizeof(unsigned int), 1185 GFP_KERNEL); 1186 if (!kcontrol_type) { 1187 ret = -ENOMEM; 1188 goto hdr_err; 1189 } 1190 1191 for (i = 0; i < le32_to_cpu(w->num_kcontrols); i++) { 1192 control_hdr = (struct snd_soc_tplg_ctl_hdr *)tplg->pos; 1193 switch (le32_to_cpu(control_hdr->ops.info)) { 1194 case SND_SOC_TPLG_CTL_VOLSW: 1195 case SND_SOC_TPLG_CTL_STROBE: 1196 case SND_SOC_TPLG_CTL_VOLSW_SX: 1197 case SND_SOC_TPLG_CTL_VOLSW_XR_SX: 1198 case SND_SOC_TPLG_CTL_RANGE: 1199 case SND_SOC_TPLG_DAPM_CTL_VOLSW: 1200 /* volume mixer */ 1201 kc[i].index = mixer_count; 1202 kcontrol_type[i] = SND_SOC_TPLG_TYPE_MIXER; 1203 mixer_count++; 1204 ret = soc_tplg_control_dmixer_create(tplg, &kc[i]); 1205 if (ret < 0) 1206 goto hdr_err; 1207 break; 1208 case SND_SOC_TPLG_CTL_ENUM: 1209 case SND_SOC_TPLG_CTL_ENUM_VALUE: 1210 case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: 1211 case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: 1212 case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: 1213 /* enumerated mixer */ 1214 kc[i].index = enum_count; 1215 kcontrol_type[i] = SND_SOC_TPLG_TYPE_ENUM; 1216 enum_count++; 1217 ret = soc_tplg_control_denum_create(tplg, &kc[i]); 1218 if (ret < 0) 1219 goto hdr_err; 1220 break; 1221 case SND_SOC_TPLG_CTL_BYTES: 1222 /* bytes control */ 1223 kc[i].index = bytes_count; 1224 kcontrol_type[i] = SND_SOC_TPLG_TYPE_BYTES; 1225 bytes_count++; 1226 ret = soc_tplg_control_dbytes_create(tplg, &kc[i]); 1227 if (ret < 0) 1228 goto hdr_err; 1229 break; 1230 default: 1231 dev_err(tplg->dev, "ASoC: invalid widget control type %d:%d:%d\n", 1232 control_hdr->ops.get, control_hdr->ops.put, 1233 le32_to_cpu(control_hdr->ops.info)); 1234 ret = -EINVAL; 1235 goto hdr_err; 1236 } 1237 } 1238 1239 template.kcontrol_news = kc; 1240 dev_dbg(tplg->dev, "ASoC: template %s with %d/%d/%d (mixer/enum/bytes) control\n", 1241 w->name, mixer_count, enum_count, bytes_count); 1242 1243 widget: 1244 ret = soc_tplg_widget_load(tplg, &template, w); 1245 if (ret < 0) 1246 goto hdr_err; 1247 1248 /* card dapm mutex is held by the core if we are loading topology 1249 * data during sound card init. */ 1250 if (snd_soc_card_is_instantiated(card)) 1251 widget = snd_soc_dapm_new_control(dapm, &template); 1252 else 1253 widget = snd_soc_dapm_new_control_unlocked(dapm, &template); 1254 if (IS_ERR(widget)) { 1255 ret = PTR_ERR(widget); 1256 goto hdr_err; 1257 } 1258 1259 widget->dobj.type = SND_SOC_DOBJ_WIDGET; 1260 widget->dobj.widget.kcontrol_type = kcontrol_type; 1261 if (tplg->ops) 1262 widget->dobj.unload = tplg->ops->widget_unload; 1263 widget->dobj.index = tplg->index; 1264 list_add(&widget->dobj.list, &tplg->comp->dobj_list); 1265 1266 ret = soc_tplg_widget_ready(tplg, widget, w); 1267 if (ret < 0) 1268 goto ready_err; 1269 1270 kfree(template.sname); 1271 kfree(template.name); 1272 1273 return 0; 1274 1275 ready_err: 1276 soc_tplg_remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET); 1277 snd_soc_dapm_free_widget(widget); 1278 hdr_err: 1279 kfree(template.sname); 1280 err: 1281 kfree(template.name); 1282 return ret; 1283 } 1284 1285 static int soc_tplg_dapm_widget_elems_load(struct soc_tplg *tplg, 1286 struct snd_soc_tplg_hdr *hdr) 1287 { 1288 int count, i; 1289 1290 count = le32_to_cpu(hdr->count); 1291 1292 dev_dbg(tplg->dev, "ASoC: adding %d DAPM widgets\n", count); 1293 1294 for (i = 0; i < count; i++) { 1295 struct snd_soc_tplg_dapm_widget *widget = (struct snd_soc_tplg_dapm_widget *) tplg->pos; 1296 int ret; 1297 1298 /* 1299 * check if widget itself fits within topology file 1300 * use sizeof instead of widget->size, as we can't be sure 1301 * it is set properly yet (file may end before it is present) 1302 */ 1303 if (soc_tplg_get_offset(tplg) + sizeof(*widget) >= tplg->fw->size) { 1304 dev_err(tplg->dev, "ASoC: invalid widget data size\n"); 1305 return -EINVAL; 1306 } 1307 1308 /* check if widget has proper size */ 1309 if (le32_to_cpu(widget->size) != sizeof(*widget)) { 1310 dev_err(tplg->dev, "ASoC: invalid widget size\n"); 1311 return -EINVAL; 1312 } 1313 1314 /* check if widget private data fits within topology file */ 1315 if (soc_tplg_get_offset(tplg) + le32_to_cpu(widget->priv.size) >= tplg->fw->size) { 1316 dev_err(tplg->dev, "ASoC: invalid widget private data size\n"); 1317 return -EINVAL; 1318 } 1319 1320 ret = soc_tplg_dapm_widget_create(tplg, widget); 1321 if (ret < 0) { 1322 dev_err(tplg->dev, "ASoC: failed to load widget %s\n", 1323 widget->name); 1324 return ret; 1325 } 1326 } 1327 1328 return 0; 1329 } 1330 1331 static int soc_tplg_dapm_complete(struct soc_tplg *tplg) 1332 { 1333 struct snd_soc_card *card = tplg->comp->card; 1334 int ret; 1335 1336 /* Card might not have been registered at this point. 1337 * If so, just return success. 1338 */ 1339 if (!snd_soc_card_is_instantiated(card)) { 1340 dev_warn(tplg->dev, "ASoC: Parent card not yet available, widget card binding deferred\n"); 1341 return 0; 1342 } 1343 1344 ret = snd_soc_dapm_new_widgets(card); 1345 if (ret < 0) 1346 dev_err(tplg->dev, "ASoC: failed to create new widgets %d\n", ret); 1347 1348 return ret; 1349 } 1350 1351 static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream, 1352 struct snd_soc_tplg_stream_caps *caps) 1353 { 1354 stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL); 1355 if (!stream->stream_name) 1356 return -ENOMEM; 1357 1358 stream->channels_min = le32_to_cpu(caps->channels_min); 1359 stream->channels_max = le32_to_cpu(caps->channels_max); 1360 stream->rates = le32_to_cpu(caps->rates); 1361 stream->rate_min = le32_to_cpu(caps->rate_min); 1362 stream->rate_max = le32_to_cpu(caps->rate_max); 1363 stream->formats = le64_to_cpu(caps->formats); 1364 stream->sig_bits = le32_to_cpu(caps->sig_bits); 1365 1366 return 0; 1367 } 1368 1369 static void set_dai_flags(struct snd_soc_dai_driver *dai_drv, 1370 unsigned int flag_mask, unsigned int flags) 1371 { 1372 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) 1373 dai_drv->symmetric_rate = 1374 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1375 1376 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) 1377 dai_drv->symmetric_channels = 1378 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS) ? 1379 1 : 0; 1380 1381 if (flag_mask & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) 1382 dai_drv->symmetric_sample_bits = 1383 (flags & SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1384 1 : 0; 1385 } 1386 1387 static const struct snd_soc_dai_ops tplg_dai_ops = { 1388 .compress_new = snd_soc_new_compress, 1389 }; 1390 1391 static int soc_tplg_dai_create(struct soc_tplg *tplg, 1392 struct snd_soc_tplg_pcm *pcm) 1393 { 1394 struct snd_soc_dai_driver *dai_drv; 1395 struct snd_soc_pcm_stream *stream; 1396 struct snd_soc_tplg_stream_caps *caps; 1397 struct snd_soc_dai *dai; 1398 struct snd_soc_dapm_context *dapm = 1399 snd_soc_component_get_dapm(tplg->comp); 1400 int ret; 1401 1402 dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL); 1403 if (dai_drv == NULL) 1404 return -ENOMEM; 1405 1406 if (strlen(pcm->dai_name)) { 1407 dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1408 if (!dai_drv->name) { 1409 ret = -ENOMEM; 1410 goto err; 1411 } 1412 } 1413 dai_drv->id = le32_to_cpu(pcm->dai_id); 1414 1415 if (pcm->playback) { 1416 stream = &dai_drv->playback; 1417 caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1418 ret = set_stream_info(tplg, stream, caps); 1419 if (ret < 0) 1420 goto err; 1421 } 1422 1423 if (pcm->capture) { 1424 stream = &dai_drv->capture; 1425 caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1426 ret = set_stream_info(tplg, stream, caps); 1427 if (ret < 0) 1428 goto err; 1429 } 1430 1431 if (pcm->compress) 1432 dai_drv->ops = &tplg_dai_ops; 1433 1434 /* pass control to component driver for optional further init */ 1435 ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL); 1436 if (ret < 0) { 1437 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1438 goto err; 1439 } 1440 1441 dai_drv->dobj.index = tplg->index; 1442 dai_drv->dobj.type = SND_SOC_DOBJ_PCM; 1443 if (tplg->ops) 1444 dai_drv->dobj.unload = tplg->ops->dai_unload; 1445 list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list); 1446 1447 /* register the DAI to the component */ 1448 dai = snd_soc_register_dai(tplg->comp, dai_drv, false); 1449 if (!dai) 1450 return -ENOMEM; 1451 1452 /* Create the DAI widgets here */ 1453 ret = snd_soc_dapm_new_dai_widgets(dapm, dai); 1454 if (ret != 0) { 1455 dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret); 1456 snd_soc_unregister_dai(dai); 1457 return ret; 1458 } 1459 1460 return 0; 1461 1462 err: 1463 return ret; 1464 } 1465 1466 static void set_link_flags(struct snd_soc_dai_link *link, 1467 unsigned int flag_mask, unsigned int flags) 1468 { 1469 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) 1470 link->symmetric_rate = 1471 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_RATES) ? 1 : 0; 1472 1473 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) 1474 link->symmetric_channels = 1475 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_CHANNELS) ? 1476 1 : 0; 1477 1478 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) 1479 link->symmetric_sample_bits = 1480 (flags & SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS) ? 1481 1 : 0; 1482 1483 if (flag_mask & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) 1484 link->ignore_suspend = 1485 (flags & SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP) ? 1486 1 : 0; 1487 } 1488 1489 /* create the FE DAI link */ 1490 static int soc_tplg_fe_link_create(struct soc_tplg *tplg, 1491 struct snd_soc_tplg_pcm *pcm) 1492 { 1493 struct snd_soc_dai_link *link; 1494 struct snd_soc_dai_link_component *dlc; 1495 int ret; 1496 1497 /* link + cpu + codec + platform */ 1498 link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL); 1499 if (link == NULL) 1500 return -ENOMEM; 1501 1502 dlc = (struct snd_soc_dai_link_component *)(link + 1); 1503 1504 link->cpus = &dlc[0]; 1505 link->num_cpus = 1; 1506 1507 link->dobj.index = tplg->index; 1508 link->dobj.type = SND_SOC_DOBJ_DAI_LINK; 1509 if (tplg->ops) 1510 link->dobj.unload = tplg->ops->link_unload; 1511 1512 if (strlen(pcm->pcm_name)) { 1513 link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1514 link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL); 1515 if (!link->name || !link->stream_name) { 1516 ret = -ENOMEM; 1517 goto err; 1518 } 1519 } 1520 link->id = le32_to_cpu(pcm->pcm_id); 1521 1522 if (strlen(pcm->dai_name)) { 1523 link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL); 1524 if (!link->cpus->dai_name) { 1525 ret = -ENOMEM; 1526 goto err; 1527 } 1528 } 1529 1530 /* 1531 * Many topology are assuming link has Codec / Platform, and 1532 * these might be overwritten at soc_tplg_dai_link_load(). 1533 * Don't use &snd_soc_dummy_dlc here. 1534 */ 1535 link->codecs = &dlc[1]; /* Don't use &snd_soc_dummy_dlc here */ 1536 link->codecs->name = "snd-soc-dummy"; 1537 link->codecs->dai_name = "snd-soc-dummy-dai"; 1538 link->num_codecs = 1; 1539 1540 link->platforms = &dlc[2]; /* Don't use &snd_soc_dummy_dlc here */ 1541 link->platforms->name = "snd-soc-dummy"; 1542 link->num_platforms = 1; 1543 1544 /* enable DPCM */ 1545 link->dynamic = 1; 1546 link->ignore_pmdown_time = 1; 1547 link->dpcm_playback = le32_to_cpu(pcm->playback); 1548 link->dpcm_capture = le32_to_cpu(pcm->capture); 1549 if (pcm->flag_mask) 1550 set_link_flags(link, 1551 le32_to_cpu(pcm->flag_mask), 1552 le32_to_cpu(pcm->flags)); 1553 1554 /* pass control to component driver for optional further init */ 1555 ret = soc_tplg_dai_link_load(tplg, link, NULL); 1556 if (ret < 0) { 1557 dev_err(tplg->dev, "ASoC: FE link loading failed\n"); 1558 goto err; 1559 } 1560 1561 ret = snd_soc_add_pcm_runtimes(tplg->comp->card, link, 1); 1562 if (ret < 0) { 1563 if (ret != -EPROBE_DEFER) 1564 dev_err(tplg->dev, "ASoC: adding FE link failed\n"); 1565 goto err; 1566 } 1567 1568 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1569 1570 return 0; 1571 err: 1572 return ret; 1573 } 1574 1575 /* create a FE DAI and DAI link from the PCM object */ 1576 static int soc_tplg_pcm_create(struct soc_tplg *tplg, 1577 struct snd_soc_tplg_pcm *pcm) 1578 { 1579 int ret; 1580 1581 ret = soc_tplg_dai_create(tplg, pcm); 1582 if (ret < 0) 1583 return ret; 1584 1585 return soc_tplg_fe_link_create(tplg, pcm); 1586 } 1587 1588 static int soc_tplg_pcm_elems_load(struct soc_tplg *tplg, 1589 struct snd_soc_tplg_hdr *hdr) 1590 { 1591 struct snd_soc_tplg_pcm *pcm; 1592 int count; 1593 int size; 1594 int i; 1595 int ret; 1596 1597 count = le32_to_cpu(hdr->count); 1598 1599 /* check the element size and count */ 1600 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1601 size = le32_to_cpu(pcm->size); 1602 if (size > sizeof(struct snd_soc_tplg_pcm)) { 1603 dev_err(tplg->dev, "ASoC: invalid size %d for PCM elems\n", 1604 size); 1605 return -EINVAL; 1606 } 1607 1608 if (soc_tplg_check_elem_count(tplg, 1609 size, count, 1610 le32_to_cpu(hdr->payload_size), 1611 "PCM DAI")) 1612 return -EINVAL; 1613 1614 for (i = 0; i < count; i++) { 1615 pcm = (struct snd_soc_tplg_pcm *)tplg->pos; 1616 size = le32_to_cpu(pcm->size); 1617 1618 /* check ABI version by size, create a new version of pcm 1619 * if abi not match. 1620 */ 1621 if (size != sizeof(*pcm)) 1622 return -EINVAL; 1623 1624 /* create the FE DAIs and DAI links */ 1625 ret = soc_tplg_pcm_create(tplg, pcm); 1626 if (ret < 0) 1627 return ret; 1628 1629 /* offset by version-specific struct size and 1630 * real priv data size 1631 */ 1632 tplg->pos += size + le32_to_cpu(pcm->priv.size); 1633 } 1634 1635 dev_dbg(tplg->dev, "ASoC: adding %d PCM DAIs\n", count); 1636 1637 return 0; 1638 } 1639 1640 /** 1641 * set_link_hw_format - Set the HW audio format of the physical DAI link. 1642 * @link: &snd_soc_dai_link which should be updated 1643 * @cfg: physical link configs. 1644 * 1645 * Topology context contains a list of supported HW formats (configs) and 1646 * a default format ID for the physical link. This function will use this 1647 * default ID to choose the HW format to set the link's DAI format for init. 1648 */ 1649 static void set_link_hw_format(struct snd_soc_dai_link *link, 1650 struct snd_soc_tplg_link_config *cfg) 1651 { 1652 struct snd_soc_tplg_hw_config *hw_config; 1653 unsigned char bclk_provider, fsync_provider; 1654 unsigned char invert_bclk, invert_fsync; 1655 int i; 1656 1657 for (i = 0; i < le32_to_cpu(cfg->num_hw_configs); i++) { 1658 hw_config = &cfg->hw_config[i]; 1659 if (hw_config->id != cfg->default_hw_config_id) 1660 continue; 1661 1662 link->dai_fmt = le32_to_cpu(hw_config->fmt) & 1663 SND_SOC_DAIFMT_FORMAT_MASK; 1664 1665 /* clock gating */ 1666 switch (hw_config->clock_gated) { 1667 case SND_SOC_TPLG_DAI_CLK_GATE_GATED: 1668 link->dai_fmt |= SND_SOC_DAIFMT_GATED; 1669 break; 1670 1671 case SND_SOC_TPLG_DAI_CLK_GATE_CONT: 1672 link->dai_fmt |= SND_SOC_DAIFMT_CONT; 1673 break; 1674 1675 default: 1676 /* ignore the value */ 1677 break; 1678 } 1679 1680 /* clock signal polarity */ 1681 invert_bclk = hw_config->invert_bclk; 1682 invert_fsync = hw_config->invert_fsync; 1683 if (!invert_bclk && !invert_fsync) 1684 link->dai_fmt |= SND_SOC_DAIFMT_NB_NF; 1685 else if (!invert_bclk && invert_fsync) 1686 link->dai_fmt |= SND_SOC_DAIFMT_NB_IF; 1687 else if (invert_bclk && !invert_fsync) 1688 link->dai_fmt |= SND_SOC_DAIFMT_IB_NF; 1689 else 1690 link->dai_fmt |= SND_SOC_DAIFMT_IB_IF; 1691 1692 /* clock masters */ 1693 bclk_provider = (hw_config->bclk_provider == 1694 SND_SOC_TPLG_BCLK_CP); 1695 fsync_provider = (hw_config->fsync_provider == 1696 SND_SOC_TPLG_FSYNC_CP); 1697 if (bclk_provider && fsync_provider) 1698 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; 1699 else if (!bclk_provider && fsync_provider) 1700 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFP; 1701 else if (bclk_provider && !fsync_provider) 1702 link->dai_fmt |= SND_SOC_DAIFMT_CBP_CFC; 1703 else 1704 link->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC; 1705 } 1706 } 1707 1708 /** 1709 * snd_soc_find_dai_link - Find a DAI link 1710 * 1711 * @card: soc card 1712 * @id: DAI link ID to match 1713 * @name: DAI link name to match, optional 1714 * @stream_name: DAI link stream name to match, optional 1715 * 1716 * This function will search all existing DAI links of the soc card to 1717 * find the link of the same ID. Since DAI links may not have their 1718 * unique ID, so name and stream name should also match if being 1719 * specified. 1720 * 1721 * Return: pointer of DAI link, or NULL if not found. 1722 */ 1723 static struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card, 1724 int id, const char *name, 1725 const char *stream_name) 1726 { 1727 struct snd_soc_pcm_runtime *rtd; 1728 1729 for_each_card_rtds(card, rtd) { 1730 struct snd_soc_dai_link *link = rtd->dai_link; 1731 1732 if (link->id != id) 1733 continue; 1734 1735 if (name && (!link->name || !strstr(link->name, name))) 1736 continue; 1737 1738 if (stream_name && (!link->stream_name || 1739 !strstr(link->stream_name, stream_name))) 1740 continue; 1741 1742 return link; 1743 } 1744 1745 return NULL; 1746 } 1747 1748 /* Find and configure an existing physical DAI link */ 1749 static int soc_tplg_link_config(struct soc_tplg *tplg, 1750 struct snd_soc_tplg_link_config *cfg) 1751 { 1752 struct snd_soc_dai_link *link; 1753 const char *name, *stream_name; 1754 size_t len; 1755 int ret; 1756 1757 len = strnlen(cfg->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1758 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1759 return -EINVAL; 1760 else if (len) 1761 name = cfg->name; 1762 else 1763 name = NULL; 1764 1765 len = strnlen(cfg->stream_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN); 1766 if (len == SNDRV_CTL_ELEM_ID_NAME_MAXLEN) 1767 return -EINVAL; 1768 else if (len) 1769 stream_name = cfg->stream_name; 1770 else 1771 stream_name = NULL; 1772 1773 link = snd_soc_find_dai_link(tplg->comp->card, le32_to_cpu(cfg->id), 1774 name, stream_name); 1775 if (!link) { 1776 dev_err(tplg->dev, "ASoC: physical link %s (id %d) not exist\n", 1777 name, cfg->id); 1778 return -EINVAL; 1779 } 1780 1781 /* hw format */ 1782 if (cfg->num_hw_configs) 1783 set_link_hw_format(link, cfg); 1784 1785 /* flags */ 1786 if (cfg->flag_mask) 1787 set_link_flags(link, 1788 le32_to_cpu(cfg->flag_mask), 1789 le32_to_cpu(cfg->flags)); 1790 1791 /* pass control to component driver for optional further init */ 1792 ret = soc_tplg_dai_link_load(tplg, link, cfg); 1793 if (ret < 0) { 1794 dev_err(tplg->dev, "ASoC: physical link loading failed\n"); 1795 return ret; 1796 } 1797 1798 /* for unloading it in snd_soc_tplg_component_remove */ 1799 link->dobj.index = tplg->index; 1800 link->dobj.type = SND_SOC_DOBJ_BACKEND_LINK; 1801 if (tplg->ops) 1802 link->dobj.unload = tplg->ops->link_unload; 1803 list_add(&link->dobj.list, &tplg->comp->dobj_list); 1804 1805 return 0; 1806 } 1807 1808 1809 /* Load physical link config elements from the topology context */ 1810 static int soc_tplg_link_elems_load(struct soc_tplg *tplg, 1811 struct snd_soc_tplg_hdr *hdr) 1812 { 1813 struct snd_soc_tplg_link_config *link; 1814 int count; 1815 int size; 1816 int i, ret; 1817 1818 count = le32_to_cpu(hdr->count); 1819 1820 /* check the element size and count */ 1821 link = (struct snd_soc_tplg_link_config *)tplg->pos; 1822 size = le32_to_cpu(link->size); 1823 if (size > sizeof(struct snd_soc_tplg_link_config)) { 1824 dev_err(tplg->dev, "ASoC: invalid size %d for physical link elems\n", 1825 size); 1826 return -EINVAL; 1827 } 1828 1829 if (soc_tplg_check_elem_count(tplg, size, count, 1830 le32_to_cpu(hdr->payload_size), 1831 "physical link config")) 1832 return -EINVAL; 1833 1834 /* config physical DAI links */ 1835 for (i = 0; i < count; i++) { 1836 link = (struct snd_soc_tplg_link_config *)tplg->pos; 1837 size = le32_to_cpu(link->size); 1838 if (size != sizeof(*link)) 1839 return -EINVAL; 1840 1841 ret = soc_tplg_link_config(tplg, link); 1842 if (ret < 0) 1843 return ret; 1844 1845 /* offset by version-specific struct size and 1846 * real priv data size 1847 */ 1848 tplg->pos += size + le32_to_cpu(link->priv.size); 1849 } 1850 1851 return 0; 1852 } 1853 1854 /** 1855 * soc_tplg_dai_config - Find and configure an existing physical DAI. 1856 * @tplg: topology context 1857 * @d: physical DAI configs. 1858 * 1859 * The physical dai should already be registered by the platform driver. 1860 * The platform driver should specify the DAI name and ID for matching. 1861 */ 1862 static int soc_tplg_dai_config(struct soc_tplg *tplg, 1863 struct snd_soc_tplg_dai *d) 1864 { 1865 struct snd_soc_dai_link_component dai_component; 1866 struct snd_soc_dai *dai; 1867 struct snd_soc_dai_driver *dai_drv; 1868 struct snd_soc_pcm_stream *stream; 1869 struct snd_soc_tplg_stream_caps *caps; 1870 int ret; 1871 1872 memset(&dai_component, 0, sizeof(dai_component)); 1873 1874 dai_component.dai_name = d->dai_name; 1875 dai = snd_soc_find_dai(&dai_component); 1876 if (!dai) { 1877 dev_err(tplg->dev, "ASoC: physical DAI %s not registered\n", 1878 d->dai_name); 1879 return -EINVAL; 1880 } 1881 1882 if (le32_to_cpu(d->dai_id) != dai->id) { 1883 dev_err(tplg->dev, "ASoC: physical DAI %s id mismatch\n", 1884 d->dai_name); 1885 return -EINVAL; 1886 } 1887 1888 dai_drv = dai->driver; 1889 if (!dai_drv) 1890 return -EINVAL; 1891 1892 if (d->playback) { 1893 stream = &dai_drv->playback; 1894 caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK]; 1895 ret = set_stream_info(tplg, stream, caps); 1896 if (ret < 0) 1897 return ret; 1898 } 1899 1900 if (d->capture) { 1901 stream = &dai_drv->capture; 1902 caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE]; 1903 ret = set_stream_info(tplg, stream, caps); 1904 if (ret < 0) 1905 return ret; 1906 } 1907 1908 if (d->flag_mask) 1909 set_dai_flags(dai_drv, 1910 le32_to_cpu(d->flag_mask), 1911 le32_to_cpu(d->flags)); 1912 1913 /* pass control to component driver for optional further init */ 1914 ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai); 1915 if (ret < 0) { 1916 dev_err(tplg->dev, "ASoC: DAI loading failed\n"); 1917 return ret; 1918 } 1919 1920 return 0; 1921 } 1922 1923 /* load physical DAI elements */ 1924 static int soc_tplg_dai_elems_load(struct soc_tplg *tplg, 1925 struct snd_soc_tplg_hdr *hdr) 1926 { 1927 int count; 1928 int i; 1929 1930 count = le32_to_cpu(hdr->count); 1931 1932 /* config the existing BE DAIs */ 1933 for (i = 0; i < count; i++) { 1934 struct snd_soc_tplg_dai *dai = (struct snd_soc_tplg_dai *)tplg->pos; 1935 int ret; 1936 1937 if (le32_to_cpu(dai->size) != sizeof(*dai)) { 1938 dev_err(tplg->dev, "ASoC: invalid physical DAI size\n"); 1939 return -EINVAL; 1940 } 1941 1942 ret = soc_tplg_dai_config(tplg, dai); 1943 if (ret < 0) { 1944 dev_err(tplg->dev, "ASoC: failed to configure DAI\n"); 1945 return ret; 1946 } 1947 1948 tplg->pos += (sizeof(*dai) + le32_to_cpu(dai->priv.size)); 1949 } 1950 1951 dev_dbg(tplg->dev, "ASoC: Configure %d BE DAIs\n", count); 1952 return 0; 1953 } 1954 1955 static int soc_tplg_manifest_load(struct soc_tplg *tplg, 1956 struct snd_soc_tplg_hdr *hdr) 1957 { 1958 struct snd_soc_tplg_manifest *manifest; 1959 int ret = 0; 1960 1961 manifest = (struct snd_soc_tplg_manifest *)tplg->pos; 1962 1963 /* check ABI version by size, create a new manifest if abi not match */ 1964 if (le32_to_cpu(manifest->size) != sizeof(*manifest)) 1965 return -EINVAL; 1966 1967 /* pass control to component driver for optional further init */ 1968 if (tplg->ops && tplg->ops->manifest) 1969 ret = tplg->ops->manifest(tplg->comp, tplg->index, manifest); 1970 1971 return ret; 1972 } 1973 1974 /* validate header magic, size and type */ 1975 static int soc_tplg_valid_header(struct soc_tplg *tplg, 1976 struct snd_soc_tplg_hdr *hdr) 1977 { 1978 if (le32_to_cpu(hdr->size) != sizeof(*hdr)) { 1979 dev_err(tplg->dev, 1980 "ASoC: invalid header size for type %d at offset 0x%lx size 0x%zx.\n", 1981 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 1982 tplg->fw->size); 1983 return -EINVAL; 1984 } 1985 1986 if (soc_tplg_get_hdr_offset(tplg) + le32_to_cpu(hdr->payload_size) >= tplg->fw->size) { 1987 dev_err(tplg->dev, 1988 "ASoC: invalid header of type %d at offset %ld payload_size %d\n", 1989 le32_to_cpu(hdr->type), soc_tplg_get_hdr_offset(tplg), 1990 hdr->payload_size); 1991 return -EINVAL; 1992 } 1993 1994 /* big endian firmware objects not supported atm */ 1995 if (le32_to_cpu(hdr->magic) == SOC_TPLG_MAGIC_BIG_ENDIAN) { 1996 dev_err(tplg->dev, 1997 "ASoC: pass %d big endian not supported header got %x at offset 0x%lx size 0x%zx.\n", 1998 tplg->pass, hdr->magic, 1999 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2000 return -EINVAL; 2001 } 2002 2003 if (le32_to_cpu(hdr->magic) != SND_SOC_TPLG_MAGIC) { 2004 dev_err(tplg->dev, 2005 "ASoC: pass %d does not have a valid header got %x at offset 0x%lx size 0x%zx.\n", 2006 tplg->pass, hdr->magic, 2007 soc_tplg_get_hdr_offset(tplg), tplg->fw->size); 2008 return -EINVAL; 2009 } 2010 2011 /* Support ABI from version 4 */ 2012 if (le32_to_cpu(hdr->abi) > SND_SOC_TPLG_ABI_VERSION || 2013 le32_to_cpu(hdr->abi) < SND_SOC_TPLG_ABI_VERSION_MIN) { 2014 dev_err(tplg->dev, 2015 "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", 2016 tplg->pass, hdr->abi, 2017 SND_SOC_TPLG_ABI_VERSION, soc_tplg_get_hdr_offset(tplg), 2018 tplg->fw->size); 2019 return -EINVAL; 2020 } 2021 2022 if (hdr->payload_size == 0) { 2023 dev_err(tplg->dev, "ASoC: header has 0 size at offset 0x%lx.\n", 2024 soc_tplg_get_hdr_offset(tplg)); 2025 return -EINVAL; 2026 } 2027 2028 return 0; 2029 } 2030 2031 /* check header type and call appropriate handler */ 2032 static int soc_tplg_load_header(struct soc_tplg *tplg, 2033 struct snd_soc_tplg_hdr *hdr) 2034 { 2035 int (*elem_load)(struct soc_tplg *tplg, 2036 struct snd_soc_tplg_hdr *hdr); 2037 unsigned int hdr_pass; 2038 2039 tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr); 2040 2041 tplg->index = le32_to_cpu(hdr->index); 2042 2043 switch (le32_to_cpu(hdr->type)) { 2044 case SND_SOC_TPLG_TYPE_MIXER: 2045 case SND_SOC_TPLG_TYPE_ENUM: 2046 case SND_SOC_TPLG_TYPE_BYTES: 2047 hdr_pass = SOC_TPLG_PASS_CONTROL; 2048 elem_load = soc_tplg_kcontrol_elems_load; 2049 break; 2050 case SND_SOC_TPLG_TYPE_DAPM_GRAPH: 2051 hdr_pass = SOC_TPLG_PASS_GRAPH; 2052 elem_load = soc_tplg_dapm_graph_elems_load; 2053 break; 2054 case SND_SOC_TPLG_TYPE_DAPM_WIDGET: 2055 hdr_pass = SOC_TPLG_PASS_WIDGET; 2056 elem_load = soc_tplg_dapm_widget_elems_load; 2057 break; 2058 case SND_SOC_TPLG_TYPE_PCM: 2059 hdr_pass = SOC_TPLG_PASS_PCM_DAI; 2060 elem_load = soc_tplg_pcm_elems_load; 2061 break; 2062 case SND_SOC_TPLG_TYPE_DAI: 2063 hdr_pass = SOC_TPLG_PASS_BE_DAI; 2064 elem_load = soc_tplg_dai_elems_load; 2065 break; 2066 case SND_SOC_TPLG_TYPE_DAI_LINK: 2067 case SND_SOC_TPLG_TYPE_BACKEND_LINK: 2068 /* physical link configurations */ 2069 hdr_pass = SOC_TPLG_PASS_LINK; 2070 elem_load = soc_tplg_link_elems_load; 2071 break; 2072 case SND_SOC_TPLG_TYPE_MANIFEST: 2073 hdr_pass = SOC_TPLG_PASS_MANIFEST; 2074 elem_load = soc_tplg_manifest_load; 2075 break; 2076 default: 2077 /* bespoke vendor data object */ 2078 hdr_pass = SOC_TPLG_PASS_VENDOR; 2079 elem_load = soc_tplg_vendor_load; 2080 break; 2081 } 2082 2083 if (tplg->pass == hdr_pass) { 2084 dev_dbg(tplg->dev, 2085 "ASoC: Got 0x%x bytes of type %d version %d vendor %d at pass %d\n", 2086 hdr->payload_size, hdr->type, hdr->version, 2087 hdr->vendor_type, tplg->pass); 2088 return elem_load(tplg, hdr); 2089 } 2090 2091 return 0; 2092 } 2093 2094 /* process the topology file headers */ 2095 static int soc_tplg_process_headers(struct soc_tplg *tplg) 2096 { 2097 int ret; 2098 2099 /* process the header types from start to end */ 2100 for (tplg->pass = SOC_TPLG_PASS_START; tplg->pass <= SOC_TPLG_PASS_END; tplg->pass++) { 2101 struct snd_soc_tplg_hdr *hdr; 2102 2103 tplg->hdr_pos = tplg->fw->data; 2104 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2105 2106 while (!soc_tplg_is_eof(tplg)) { 2107 2108 /* make sure header is valid before loading */ 2109 ret = soc_tplg_valid_header(tplg, hdr); 2110 if (ret < 0) 2111 return ret; 2112 2113 /* load the header object */ 2114 ret = soc_tplg_load_header(tplg, hdr); 2115 if (ret < 0) { 2116 if (ret != -EPROBE_DEFER) { 2117 dev_err(tplg->dev, 2118 "ASoC: topology: could not load header: %d\n", 2119 ret); 2120 } 2121 return ret; 2122 } 2123 2124 /* goto next header */ 2125 tplg->hdr_pos += le32_to_cpu(hdr->payload_size) + 2126 sizeof(struct snd_soc_tplg_hdr); 2127 hdr = (struct snd_soc_tplg_hdr *)tplg->hdr_pos; 2128 } 2129 2130 } 2131 2132 /* signal DAPM we are complete */ 2133 ret = soc_tplg_dapm_complete(tplg); 2134 2135 return ret; 2136 } 2137 2138 static int soc_tplg_load(struct soc_tplg *tplg) 2139 { 2140 int ret; 2141 2142 ret = soc_tplg_process_headers(tplg); 2143 if (ret == 0) 2144 return soc_tplg_complete(tplg); 2145 2146 return ret; 2147 } 2148 2149 /* load audio component topology from "firmware" file */ 2150 int snd_soc_tplg_component_load(struct snd_soc_component *comp, 2151 const struct snd_soc_tplg_ops *ops, const struct firmware *fw) 2152 { 2153 struct soc_tplg tplg; 2154 int ret; 2155 2156 /* 2157 * check if we have sane parameters: 2158 * comp - needs to exist to keep and reference data while parsing 2159 * comp->card - used for setting card related parameters 2160 * comp->card->dev - used for resource management and prints 2161 * fw - we need it, as it is the very thing we parse 2162 */ 2163 if (!comp || !comp->card || !comp->card->dev || !fw) 2164 return -EINVAL; 2165 2166 /* setup parsing context */ 2167 memset(&tplg, 0, sizeof(tplg)); 2168 tplg.fw = fw; 2169 tplg.dev = comp->card->dev; 2170 tplg.comp = comp; 2171 if (ops) { 2172 tplg.ops = ops; 2173 tplg.io_ops = ops->io_ops; 2174 tplg.io_ops_count = ops->io_ops_count; 2175 tplg.bytes_ext_ops = ops->bytes_ext_ops; 2176 tplg.bytes_ext_ops_count = ops->bytes_ext_ops_count; 2177 } 2178 2179 ret = soc_tplg_load(&tplg); 2180 /* free the created components if fail to load topology */ 2181 if (ret) 2182 snd_soc_tplg_component_remove(comp); 2183 2184 return ret; 2185 } 2186 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load); 2187 2188 /* remove dynamic controls from the component driver */ 2189 int snd_soc_tplg_component_remove(struct snd_soc_component *comp) 2190 { 2191 struct snd_soc_dobj *dobj, *next_dobj; 2192 int pass; 2193 2194 /* process the header types from end to start */ 2195 for (pass = SOC_TPLG_PASS_END; pass >= SOC_TPLG_PASS_START; pass--) { 2196 2197 /* remove mixer controls */ 2198 list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list, 2199 list) { 2200 2201 switch (dobj->type) { 2202 case SND_SOC_DOBJ_BYTES: 2203 case SND_SOC_DOBJ_ENUM: 2204 case SND_SOC_DOBJ_MIXER: 2205 soc_tplg_remove_kcontrol(comp, dobj, pass); 2206 break; 2207 case SND_SOC_DOBJ_GRAPH: 2208 soc_tplg_remove_route(comp, dobj, pass); 2209 break; 2210 case SND_SOC_DOBJ_WIDGET: 2211 soc_tplg_remove_widget(comp, dobj, pass); 2212 break; 2213 case SND_SOC_DOBJ_PCM: 2214 soc_tplg_remove_dai(comp, dobj, pass); 2215 break; 2216 case SND_SOC_DOBJ_DAI_LINK: 2217 soc_tplg_remove_link(comp, dobj, pass); 2218 break; 2219 case SND_SOC_DOBJ_BACKEND_LINK: 2220 /* 2221 * call link_unload ops if extra 2222 * deinitialization is needed. 2223 */ 2224 remove_backend_link(comp, dobj, pass); 2225 break; 2226 default: 2227 dev_err(comp->dev, "ASoC: invalid component type %d for removal\n", 2228 dobj->type); 2229 break; 2230 } 2231 } 2232 } 2233 2234 /* let caller know if FW can be freed when no objects are left */ 2235 return !list_empty(&comp->dobj_list); 2236 } 2237 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_remove); 2238